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Defence mechanisms against production of free radicals in cells of ‘resurrection’ plants

Published online by Cambridge University Press:  05 December 2011

Cristina L. M. Sgherri ,
Mike F. Quartacci ,
Adriana Bochicchio  and
Flavia Navari-Izzo
Cristina L. M. Sgherri
Affiliation:
Istituto di Chimica Agraria, Università di Pisa, Via S. Michele degli Scalzi, I-56124 Pisa, Italy
Mike F. Quartacci
Affiliation:
Istituto di Chimica Agraria, Università di Pisa, Via S. Michele degli Scalzi, I-56124 Pisa, Italy
Adriana Bochicchio
Affiliation:
Dipartimento di Agronomia e Produzione Erbacee, Università di Firenze, Piazzale delle Cascine 18, 1-50144 Firenze, Italy
Flavia Navari-Izzo
Affiliation:
Istituto di Chimica Quantistica ed Energetica Molecolare, C.N.R., Via Risorgimento 35, I-56126 Pisa, Italy
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Extract

The ability of protoplasm to revive following severe water deficit is at its greatest in desiccation-tolerant or ‘resurrection’ plants. Boea hygroscopica is a resurrection plant that is able to survive air-dryness following slow dehydration (80% RH) in a physiological state called anabiosis (Schwab & Gaff 1990). However, this plant loses the ability to recover complete physiological activity following rapid water loss (0% RH).

The ability to recover complete physiological activity following repeated protoplasmic dehydration of fully differentiated tissues is an adaptation mechanism unique to resurrection plants.

Type
Short Communications
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 102: Oxygen and Environmental Stress in Plants , 1994 , pp. 291 - 294
Copyright
Copyright © Royal Society of Edinburgh 1994

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